Design parameters for stripping fresh oil palm fruitlets
An attempt was made in this study to separate oil palm fruitlets mechanically from cut spikelets prior to transportation to the mill. An experimental drum thresher was developed and the effects of various technical conditions on threshability, bruise index, and threshing power requirement were ident...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Farm Machinery Industrial Research Corp.
1996
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| Online Access: | http://psasir.upm.edu.my/id/eprint/29126/1/Design%20parameters%20for%20stripping%20fresh%20oil%20palm%20fruitlets.pdf |
| _version_ | 1796971475285049344 |
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| author | Suryanto, Hadi Bardaie, Mohd Zohadie |
| author_facet | Suryanto, Hadi Bardaie, Mohd Zohadie |
| author_sort | Suryanto, Hadi |
| collection | UPM |
| description | An attempt was made in this study to separate oil palm fruitlets mechanically from cut spikelets prior to transportation to the mill. An experimental drum thresher was developed and the effects of various technical conditions on threshability, bruise index, and threshing power requirement were identified. The percentage of stripped fruitlets could be increased by increasing the rotational speed, decreasing inclination angle and diameter of the inner drum. The threshability of fruitlets with a feeding rate of 600 kg/h, inner drum speed of about 300 rpm and diameter of 16, 22, and 28 cm were about 98%, 95%, and 94% for each drum diameter, respectively. Increasing the inner drum speed and diameter would increase the threshing power requirement. The relationship between drum speed and bruise index for each diameter was not significant. The bruise indexes in the threshing drum of 16, 22, and 28 cm diameter approached their average value of 2.4, 3.9, and 4.0, respectively. Fruitlets with these indexes would produce free fatty acid of less than 5% within 12 hours. |
| first_indexed | 2024-03-06T08:13:35Z |
| format | Article |
| id | upm.eprints-29126 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:13:35Z |
| publishDate | 1996 |
| publisher | Farm Machinery Industrial Research Corp. |
| record_format | dspace |
| spelling | upm.eprints-291262016-04-26T01:08:42Z http://psasir.upm.edu.my/id/eprint/29126/ Design parameters for stripping fresh oil palm fruitlets Suryanto, Hadi Bardaie, Mohd Zohadie An attempt was made in this study to separate oil palm fruitlets mechanically from cut spikelets prior to transportation to the mill. An experimental drum thresher was developed and the effects of various technical conditions on threshability, bruise index, and threshing power requirement were identified. The percentage of stripped fruitlets could be increased by increasing the rotational speed, decreasing inclination angle and diameter of the inner drum. The threshability of fruitlets with a feeding rate of 600 kg/h, inner drum speed of about 300 rpm and diameter of 16, 22, and 28 cm were about 98%, 95%, and 94% for each drum diameter, respectively. Increasing the inner drum speed and diameter would increase the threshing power requirement. The relationship between drum speed and bruise index for each diameter was not significant. The bruise indexes in the threshing drum of 16, 22, and 28 cm diameter approached their average value of 2.4, 3.9, and 4.0, respectively. Fruitlets with these indexes would produce free fatty acid of less than 5% within 12 hours. Farm Machinery Industrial Research Corp. 1996 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/29126/1/Design%20parameters%20for%20stripping%20fresh%20oil%20palm%20fruitlets.pdf Suryanto, Hadi and Bardaie, Mohd Zohadie (1996) Design parameters for stripping fresh oil palm fruitlets. Agricultural Mechanization in Asia, Africa and Latin America, 27 (3). pp. 51-56. ISSN 0084-5841 |
| spellingShingle | Suryanto, Hadi Bardaie, Mohd Zohadie Design parameters for stripping fresh oil palm fruitlets |
| title | Design parameters for stripping fresh oil palm fruitlets |
| title_full | Design parameters for stripping fresh oil palm fruitlets |
| title_fullStr | Design parameters for stripping fresh oil palm fruitlets |
| title_full_unstemmed | Design parameters for stripping fresh oil palm fruitlets |
| title_short | Design parameters for stripping fresh oil palm fruitlets |
| title_sort | design parameters for stripping fresh oil palm fruitlets |
| url | http://psasir.upm.edu.my/id/eprint/29126/1/Design%20parameters%20for%20stripping%20fresh%20oil%20palm%20fruitlets.pdf |
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